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feat: enable ALTS hard bound token in DirectPath #3904

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Merged
merged 1 commit into from
Jun 5, 2025
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feat: enable ALTS hard bound token in DirectPath #3904

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4 changes: 4 additions & 0 deletions google-cloud-spanner/src/main/java/com/google/cloud/spanner/spi/v1/GapicSpannerRpc.java
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Original file line number Diff line number Diff line change
Expand Up @@ -368,6 +368,10 @@ public GapicSpannerRpc(final SpannerOptions options) {
boolean isAttemptDirectPathXds = isEnableDirectPathXdsEnv();
if (isAttemptDirectPathXds) {
defaultChannelProviderBuilder.setAttemptDirectPath(true);
// This will let the credentials try to fetch a hard-bound access token if the runtime
// environment supports it.
defaultChannelProviderBuilder.setAllowHardBoundTokenTypes(
Collections.singletonList(InstantiatingGrpcChannelProvider.HardBoundTokenTypes.ALTS));
defaultChannelProviderBuilder.setAttemptDirectPathXds();
}

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